serializers.py 文件源码

def validate(self, attrs):
        # custom validation
        host = self._get_host_by_fqdn(attrs)

        if host is None:
            raise ValidationError('Host \'{}\' not found.'.format(attrs['certname']))

        if not host.pxe_installable:
            raise ValidationError('Host \'{}\' is marked as not installable via PXE.'.format(attrs['certname']))

        if not host.pxe_key:
            raise ValidationError('Host \'{}\' has no pxe_key.'.format(attrs['certname']))

        if host.pxe_key != attrs['pxe_key']:
            raise ValidationError('Supplied pxe_key \'{}\' does not match host \'{}\'.'.format(
                    attrs['pxe_key'],
                    attrs['certname']))

        self.host = host

        return attrs